+ struct dpif_linux *dpif = dpif_linux_cast(dpif_);
+ struct nl_transaction **txnsp;
+ struct nl_transaction *txns;
+ size_t i;
+
+ txns = xmalloc(n_ops * sizeof *txns);
+ for (i = 0; i < n_ops; i++) {
+ struct nl_transaction *txn = &txns[i];
+ struct dpif_op *op = ops[i];
+
+ if (op->type == DPIF_OP_FLOW_PUT) {
+ struct dpif_flow_put *put = &op->u.flow_put;
+ struct dpif_linux_flow request;
+
+ dpif_linux_init_flow_put(dpif_, put, &request);
+ if (put->stats) {
+ request.nlmsg_flags |= NLM_F_ECHO;
+ }
+ txn->request = ofpbuf_new(1024);
+ dpif_linux_flow_to_ofpbuf(&request, txn->request);
+ } else if (op->type == DPIF_OP_EXECUTE) {
+ struct dpif_execute *execute = &op->u.execute;
+
+ txn->request = dpif_linux_encode_execute(dpif->dp_ifindex,
+ execute);
+ } else {
+ NOT_REACHED();
+ }